FR2290110B1 - - Google Patents

Info

Publication number
FR2290110B1
FR2290110B1 FR7532700A FR7532700A FR2290110B1 FR 2290110 B1 FR2290110 B1 FR 2290110B1 FR 7532700 A FR7532700 A FR 7532700A FR 7532700 A FR7532700 A FR 7532700A FR 2290110 B1 FR2290110 B1 FR 2290110B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7532700A
Other languages
French (fr)
Other versions
FR2290110A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2290110A1 publication Critical patent/FR2290110A1/fr
Application granted granted Critical
Publication of FR2290110B1 publication Critical patent/FR2290110B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
FR7532700A 1974-10-24 1975-10-24 Procede et dispositif pour la production de signaux binaires Granted FR2290110A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742450529 DE2450529C3 (de) 1974-10-24 1974-10-24 Verfahren und Vorrichtung zur Erzeugung binärer Signale

Publications (2)

Publication Number Publication Date
FR2290110A1 FR2290110A1 (fr) 1976-05-28
FR2290110B1 true FR2290110B1 (de) 1982-10-15

Family

ID=5929061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532700A Granted FR2290110A1 (fr) 1974-10-24 1975-10-24 Procede et dispositif pour la production de signaux binaires

Country Status (6)

Country Link
AT (1) AT344258B (de)
CH (1) CH591793A5 (de)
DE (1) DE2450529C3 (de)
FR (1) FR2290110A1 (de)
GB (1) GB1518177A (de)
NL (1) NL7512440A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814891C3 (de) * 1978-04-06 1982-02-11 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur Umwandlung eines Videosignals in ein Schwarz/Weiß-Signal
US4200861A (en) * 1978-09-01 1980-04-29 View Engineering, Inc. Pattern recognition apparatus and method
US4326258A (en) * 1980-01-31 1982-04-20 Ncr Canada Ltd - Ncr Canada Ltee Method and apparatus for reducing the gray scale resolution of a digitized image
US4399469A (en) * 1980-04-23 1983-08-16 American Hoechst Corporation Imaging system and method with improved boundary detection
DE3413651C3 (de) * 1983-04-12 1997-11-20 Canon Kk Bildsignalverarbeitungsgerät
GB2157113B (en) * 1984-04-05 1987-06-24 British Library Board Improved threshold detector
DE29700983U1 (de) * 1997-01-22 1997-03-13 Irion Sen Erhard Anordnung zur Ausgabe eines mittels einer Videokamera aufgenommenen Bildes durch ein Telefaxgerät

Also Published As

Publication number Publication date
FR2290110A1 (fr) 1976-05-28
NL7512440A (nl) 1976-04-27
DE2450529B2 (de) 1978-05-24
CH591793A5 (de) 1977-09-30
AT344258B (de) 1978-07-10
ATA801975A (de) 1977-11-15
DE2450529C3 (de) 1979-01-25
DE2450529A1 (de) 1976-04-29
GB1518177A (en) 1978-07-19

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Legal Events

Date Code Title Description
ST Notification of lapse